11 overwrite all data function, Overwrite all data function -68 – Konica Minolta bizhub 500 User Manual

Page 87

Advertising
background image

2

Administrator Operations

2-68

500/420

Ad

minist

ra

to

r Op

er

at

ions

Chapter 2

2.11

Overwrite All Data Function

When access to the Administrator Setting mode by the Administrator of the
machine via the control panel is authenticated, the machine enables setting
of the operation of the Overwrite All Data function.

When the machine is to be discarded, or use of a leased machine is termi-
nated at the end of the leasing contract, the Overwrite All Data function over-
writes and erases all data stored in all spaces of the HDD. The function also
resets all passwords saved in the NVRAM to factory settings, preventing leak
of data. For details of items that are cleared by the Overwrite All Data func-
tion, see “Types of Data Cleared by Overwrite All Data Function” on
page 1-12.

The HDD Overwrite Method offers the choice of eight different modes, [Mode
1] through [Mode 8]. Overwrite All Data takes about 30 minutes in [Mode 1]
at the minimum and about 4 hours in [Mode 8] at the maximum.

2

Reminder

Execution of the Overwrite All Data function not only overwrites and eras-
es all data stored in all spaces of the HDD, but also resets all passwords
to factory settings.

Mode

Description

Mode 1

Overwrites once with 0x00.

Mode 2

Overwrites with random numbers

→ random numbers → 0x00.

Mode 3

Overwrites with 0x00

→ 0xff → random numbers → verifies.

Mode 4

Overwrites with random numbers

→ 0x00 → 0xff.

Mode 5

Overwrites with 0x00

→ 0xff → 0x00 → 0xff.

Mode 6

Overwrites with 0x00

→ 0xff → 0x00 → 0xff → 0x00 → 0xff → random numbers.

Mode 7

Overwrites with 0x00

→ 0xff → 0x00 → 0xff → 0x00 → 0xff → 0xaa.

Mode 8

Overwrites with 0x00

→ 0xff → 0x00 → 0xff → 0x00 → 0xff → 0xaa → verifies.

420_security_E.book 68 ページ 2007年3月7日 水曜日 午後3時15分

Advertising
This manual is related to the following products: